<template>
    <div class="icon-dialog">
        <el-dialog
            v-bind="$attrs"
            width="980px"
            :modal-append-to-body="false"
            v-on="$listeners"
            @open="onOpen"
            @close="onClose"
        >
            <div slot="title">
                选择图标
                <el-input
                    v-model="key"
                    size="mini"
                    :style="{width: '260px'}"
                    placeholder="请输入图标名称"
                    prefix-icon="el-icon-search"
                    clearable
                />
            </div>
            <ul class="icon-ul">
                <li
                    v-for="icon in iconList"
                    :key="icon"
                    :class="active===icon?'active-item':''"
                    @click="onSelect(icon)"
                >
                    <i :class="icon" />
                    <div>{{ icon }}</div>
                </li>
            </ul>
        </el-dialog>
    </div>
</template>
<script>
import iconList from '@/utils/form/icon.json'

const originList = iconList.map(name => `el-icon-${name}`)

export default {
    inheritAttrs: false,
    props: ['current'],
    data() {
        return {
            iconList: originList,
            active: null,
            key: ''
        }
    },
    watch: {
        key(val) {
            if (val) {
                this.iconList = originList.filter(name => name.indexOf(val) > -1)
            } else {
                this.iconList = originList
            }
        }
    },
    methods: {
        onOpen() {
            this.active = this.current
            this.key = ''
        },
        onClose() {
        },
        onSelect(icon) {
            this.active = icon
            this.$emit('select', icon)
            this.$emit('update:visible', false)
        }
    }
}
</script>
<style lang="scss" scoped>
.icon-ul {
  margin: 0;
  padding: 0;
  font-size: 0;

  li {
    list-style-type: none;
    text-align: center;
    font-size: 14px;
    display: inline-block;
    width: 16.66%;
    box-sizing: border-box;
    height: 108px;
    padding: 15px 6px 6px 6px;
    cursor: pointer;
    overflow: hidden;

    &:hover {
      background: #f2f2f2;
    }

    &.active-item {
      background: #e1f3fb;
      color: #7a6df0;
    }

    > i {
      font-size: 30px;
      line-height: 50px;
    }
  }
}

.icon-dialog {
  ::v-deep .el-dialog {
    border-radius: 8px;
    margin-bottom: 0;
    margin-top: 4vh !important;
    display: flex;
    flex-direction: column;
    max-height: 92vh;
    overflow: hidden;
    box-sizing: border-box;

    .el-dialog__header {
      padding-top: 14px;
    }

    .el-dialog__body {
      margin: 0 20px 20px 20px;
      padding: 0;
      overflow: auto;
    }
  }
}
</style>
